Accelerated urbanization and rapid technological advancement have rendered traditional building management methods inadequate to meet the modern demands for efficiency, energy conservation, safety, and other diverse requirements. As an emerging architectural paradigm, smart buildings are progressively becoming a new trend in urban development. This project aims to create an integrated smart building management system unifying intelligence, automation, and digitalization through IoT technology, thereby enhancing operational efficiency, reducing energy consumption, strengthening security, and delivering more convenient and comfortable experiences for tenants.